US363383A - Car-wheel - Google Patents

Description

(No Model.)

J. GOETTEL. GAR WHEEL.

No. 363,383. Patented May 24, 1887.

l/viimeomza ll ll iTEn STATES JOHN GOETTEL, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONEIIALF TO FREDERICK BALDT, OF CHESTER, PENNSYLVANIA.

CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 363,388, dated May 2 1887. Application filed January 15, 1887. Serial No. 224,430. (No model.)

I: and use the same.

My invention relates to car-wheels which are so constructed as to allow for the slip in turning curves in the track; and its object is to provide a wheel of simple yet strong construction, all the parts being made of caststeel, and which will turn independently of the axle when necessary.

My invention consists in certain combinations and arrangements of parts, as hereinafter set forth, and particularly pointed out in the claims, reference being had to the accompanying drawings, in which- Figure 1 is a view of the outside of one of my improved wheels. Fig. 2 is asi milar view, with the annular retainingplate removed to show the arrangement of the anti't'riction rollers. Figs. 3 and 6 are similar views showing other arrangements of the rollers. Fig. 4 is an enlarged vertical section of the upper half of a wheel. Fig. 5 is a similar section of a modified construction.

Similar letters refer to corresponding parts in all the views.

Upon the axle A is secured a hub, B, which is formed with two annularshoulders, b b, a raised cylindrical portion, 1)", and a circular flange, I), extending from one end of the cylindrical portion 1)", at right angles thereto. This flange is preferably arranged at the inner end of the hub 13, and may be strengthened by radial ribs b.

The wheel 0 is annular, its inside diameter being somewhat greater than the diameter of the cylindrical portion b of the hub. The inner face, 0, of the wheel 0 is cylindrical and of the same thickness as the portion 1) of the hub. Between these two cylindrical surfaces is a series of anti-friction rollers, D, cylindrical in form and of a length equal to the thickness of the wheel at c. The portion 1) of the hub thus forms the seat on which these rollers rest flange I) and the plate E, and is therefore caand turn. They are confined in place by the flange b at one end and by an annular retaining-plate, E, at the other end, which fits over the shoulder b, and is of about the same diameter as the flange If. The plate E is secured by bolts E, passing through the hub 13. The wheel 0 rests upon the rollers D between the pable of rotating about the hub B.

In order to provide against the entrance of dust and grit, the wheel G is formed with two annular shoulders, c, which project over the outer edges of the flange I) and plate E, as shown; and to still further guard against this 6 5 each face of the wheel above the shoulder a, and the outer corners of the flange b and plate E, are chamfered off to make an inclined surface, as shown, so that the cinders and dust falling upon itwill slide offby their own weight.

The rollers D may be placed close together, as shown in Fig. 8; but I prefer to arrange them as indicated in Fig. 2, wherein the rollers are slightly separated, and a small intermediate roller, D, is placed between every two 7 5 rollers, D, so as to alternate with them, as shown. These intermediate rollers reduce the wear of the main rollers D on each other, and also serve an important function in distributing the lubricating material. They may be 8 used also as shown in Fig. 6, where the rollers D are set close together.

The wheel 0 is cored out to form an annular chamber, 0, which lightens the wheel, and also serves as an oil-reservoir. I11 the outer 53 face of the wheel are two or more filling-holes, c closed by screw-plu gs c, by means of which supplies of oil can be introduced. Oil-duets 0 lead from the chamber O to the inner face ofthe wheel a and conduct the oil to therollers D D. Another set of oil-holes, c, is provided in the plate E, being closed by plugs a. An oilway, (Z, may be formed in the rollers D and face 0 and seat I)", if desired.

In the modification shown in Fig. 5 the hub B is of much greater diameter, forming prac tical] y the body of the wheel, and being cored out to lighten the wheel. The faces of the movable rim 0 are flush with the outer faces of the flange b and plate E; but the construc- I0) tion is otherwise the same as that above described.

All the parts of this wheelare made of caststeel, and are fitted together with a minimum of machine-work, which, in any event, is simple lathe-work. The flange b is located at the rear of the wheel to resist the side-thrust of the axle when the wheel comes in contact with a curve. The nuts and oil-holes are all on the outside, where they are easily inspected and attended to.

The operation of myimproved wheel is as follows: When running on atangent, all the parts of each wheel revolve with the axle; but when a curve is reached the wheel on the outside of the curve can slip around on its rollers DD, or the axle and hub can turn within the wheel on the inside of the curve, or both operations may take place at thesame time, the result in any case being that neither wheel is compelled to slip on the track, but each rolls smoothly, independent of the other. This relieves the wheels-and track from the wear to which they are subjected by the slipping of wheels which are rigidly secured to the axle; and, furthermore, it saves the motive power which must be expended in dragging such wheels around curves; also, thereby reducing the flange friction 011 curves.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination, with hub B, having cylindrical seat b and flange b", provided with ribs b, of the steel rollersDD, equal in length to said seat b the plate E, secured to said hub, the annular wheel 0, fitted between said flange and plate and having a cylindrical face, 0,

3. The combination, with the hub B, having cylindrical seat Z) and flange I), of the plate E, secured to said hub, the rollers D D, resting on said seat between said flange and plate, and the wheel 0, having the oil-chamber G, filling-holes 0*, and ducts c, substantially as and for the purpose set forth.

4. The improved car-wheel hereinbefore set forth, consisting of the combination of hub B, having shoulder 6, seat d and flange b, annular wheel 0, having chamber 0, face 0, shoulders c c, filling-holes ciand oil-ducts 0, steel rollers D D, plate E, and bolts E, the shoulders c c, flange b, and plate E being chamfered off to form an inclined surface, sub stantially as and for'the purpose set forth. In witness whereof I have hereunto set my hand, this 11th day of January, 1887, in the presence of two witnesses.

JOHN GOETTEL.

Witnesses:

WM. F. HUNTEMANN, E. L. YEWELL.

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